I never used security on my phones. Not on my droids or my previous iPhones. However, I started using the touch ID system the day I got my 5s and love it. The only thing that annoys me is I haven't gotten used to scanning my finger or putting in the code to access notifications directly from the lockscreen. But that is a minor annoyance. I did turn off touch ID for a short time because I was having a rapid fire text conversation and it was really annoying to have to scan my finger every time. I forgot to turn it back on and it was even more annoying when pressing the home button didn't unlock my phone. So who else uses the fingerprint scanner?